Assig



J. E. GIBBS.

GHURN DAS'HBB.

(No Model.)

Patented Mar. 27,1888.

WITAfESSESf linirrnn Sterns arrivi @arreso JAMES EDWIN GIBBS, OF JONESBOROUGH, TENNESSEE, ASSIGOR OF ONE- IIALF rIO vWILIIAr/I G. MATHES, OF SAME PLACE.

CHURNQDASHER.,

SPECIFICATION forming part of Letters Patent No. 380,282, dated March 27, 1888.

Application filed November 10,- 1887. Serial No. 254,806. No model.)

To all whom, it may concern.-

Be it known that l, Jarras EDWIN Grens, a citizen of the United States, and a resident of Jonesborough,in the county ofVashington and State of Tennessee, have invented certain new and useful Improvements in Ghurn-Dashers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

Figure l of the drawings is a side elevation of my improved dasher with the clutch disengaged. Fig. 2 is a vertical section of the saine with the clutch engaged. Fig. 3 is a plan View of the bottom blade. Fig. 4 is a bottom view ol" the top blade, and Fig. 5 is a bottoni View of my improved dasher.

The invention relates to churn-dashers, being an improvement on a patent granted to me on the 23d day of September, 1879, and numbered 219,934; and it consists in the construction and novel combination of parts here inafter described, illustrated in the drawings, and pointed out in the claims hereto appended.

leferring to the drawings by letter, A des ignates the dasher-staff, and B C the upper and lower beaters, respectively. Thesaid beaters are similar, except that they have their outstanding radial blades inclined laterally/in opposite directions but at equal angles. Any number of blades can be used in each beater; but it is preferable that each should have four, for the reason that each beater then has the least number of opposite blades, and that the blades of one beater interfere the least with those of the other, as will be hereinafter apparent.

'Ihe upper beater, B, Fig. l, is composed of four equidistant blades, theopposite blades being preferably made integral with each other, and all the blades being inclined laterally at equal angles in the same direction.

The lower beater, C, is composed of an equal number of blades, c, in all respects similar to the blades l, except that they are inclined at equal angles in the opposite direction, so that the lower beater will turn oppositely to the upper beater,

D is a clutch made in two sections, E and E, each consisting of a crown or face ratchet having radial shoulders and a sleeve standing centrally from its back, the bore of the sleeve extending through to the face of the section. The section E has its sleeve e fitted in a central opening formed at the crossing of the integral blades of the upper beater, B, and is secured to said beater, so as to turn therewith, by screws or otherwise, as shown. The lower section, F, of the clutch D has a similar but larger sleeve,f, tted into a similar opening in the lower beater, C, and similarly secured to said beater. The section E is on the lower surface of the beater B and the section E is on the upper surface of the beater C, so that when the part-s are in place the clutch-sections face each other and are in position to engage.

G is a retaining-screw having a head, g, that rests partly within the central opening through the lower beater, and has-the lower end of the sleeve f resting upon it. The stern of the said screw consists of a lower and larger unth readed part, H, an upper and smaller unthreaded 7 5 part, I, and a threaded end portion, J, which is screwed into the lower end of the dasherstaff, the parts H and I being of different diameters from the circumferential shoulder It, upon which the face of the upper section, E, of the ratchet rests, the unthreaded part I of the screw being fitted loosely in the sleeve e. rIhe sleeve j' of the lower clutch-section fits loosely over the unthreaded part H ol' the screw G, so that it can both rotate and rise freely thereon. S5 The shoulders of the clutch-section are so situated in regard to the blades of the corresponding beaters that when the said sections engage the blades of one section make angles of fortyve degrees with the adjacent blades of the other section, or stand at equal distances from said adjacent bades.

When the dasher is reciprocated, the lower beater is forced upward by the pressure of the cream, into which it is forced downward, and g5 the clutch-sections E and E are engaged together, the blades b of the upper section stand ing above and atangles ot' forty-iive degrees to the blades o of the lower section, so that while the beaters can turn laterally on the roo dasherstaff, and will so turn before a torsional strain comes on said staff, neher beater will f rotate except sufficiently to take the torsional strain off the said staff, as the beaters tend to rotate in opposite directions and counterbalance. When the dasher-staffis drawn upward,

the lower beater falls, the clutch-sections are io ward of the dasher is thus made more easy,

and simultaneously oppositely flowing currents are produced in the cream.

Having described my invention, I claiml. The combination, with the dasher-staff and the screw provided with the head, the two unequal-sized unthreaded portions forming the circumferential shoulder, and the threaded end, of the beaters having blades inclinedlaterally at equal angles, those of one beater be zo ing inclined in opposite directions to those of the other beater, and the ratchet-faced clutchseetions engaged, respectively, to the lower surface of the upper beater and to the upper surface of the lower beater, and engaging When the blades of said beaters make angles of fortyve degrees with each other, substantially as specied.

2. The herein-described churndasher,composed of the staff A, the beaters B C, having, respectively, the four equidistant blades b c, the ratchet-faced clutch-sections E F, secured, respectively, to the upper and lower beaters, and the screw-pin G, provided with the head g and the unthreaded portions H I, substantially as specified.

In testimony whereof I afiix my signature in presence of two witnesses.

JAMES EDWIN GIBBS.`

Witnesses:

F. F. DossER, R. N. DossER. 

